1 Features
1• Relative Accuracy:
– DAC756x (12-Bit): 0.3 LSB INL
– DAC816x (14-Bit): 1 LSB INL
– DAC856x (16-Bit): 4 LSB INL
• Glitch Impulse: 0.1 nV-s
• Bidirectional Reference: Input or 2.5-V Output
– Output Disabled by Default
– ±5-mV Initial Accuracy (Max)
– 4-ppm°C Temperature Drift (Typ) three–
10-ppm/°C Temperature Drift (Max)
– 20-mA Sink and Source Capability
• Power-On Reset to Zero Scale or Mid-Scale
• Low-Power: 4 mW (Typ, 5-V AV DD, Including
Internal Reference Current)
• Wide Power-Supply Range: 2.7 V to 5.5 V
• 50-MHz SPI With Schmitt-Triggered Inputs
• LDAC and CLR Functions
• Output Buffer With Rail-to-Rail Operation
• Packages: WSON-10 (3 mm × 3 mm), VSSOP-10
• Temperature Range: –40°C to 125°C

2 Applications
• Portable Instrumentation
• PLC Analog Output Module
• Closed-Loop Servo Control
• Voltage Controlled Oscillator Tuning
• Data Acquisition Systems
• Programmable Gain and Offset Adjustment

3 Description
The DAC756x, DAC816x, and DAC856x devices are
low-power, voltage-output, dual-channel, 16-, 14-, and 12-bit digital-to-analog converters (DACs),
respectively. These devices include a 2.5-V,
4-ppm/°C internal reference, giving a full-scale output
voltage range of 2.5 V or 5 V. The internal reference has an initial accuracy of ±5 mV and can source or
sink up to 20 mA at the VREFIN/VREFOUT pin.
These devices are monotonic, providing excellent
linearity and minimizing undesired code-to-code
transient voltages (glitch). They use a versatile three–
wire serial interface that operates at clock rates up to 50 MHz. The interface is compatible with standard
SPI™, QSPI™, Microwire, and digital signal
processor (DSP) interfaces. The DACxx62 devices
incorporate a power-on-reset circuit that ensures the
DAC output powers up and remains at zero scale until a valid code is written to the device, whereas the
DACxx63 devices similarly power up at mid-scale.
These devices contain a power-down feature that
reduces current consumption to typically 550 nA at
5 V. The low power consumption, internal reference,
and small footprint make these devices ideal for
portable, battery-operated equipment.
The DACxx62 devices are drop-in and functioncompatible
with each other, as are the DACxx63
devices. The entire family is available in MSOP-10
and SON-10 packages.